Parrot developer, focusing on optimization, correctness, and the long-term sustainability of the project. He's touched almost every part of the system and has contributed for almost all of the lifetime of the project.

Perl 6 advocate, project secretary and the one who argued for roles for a couple of years until Allison pointed to the traits paper.

Co-owner of Onyx Neon Inc. and publisher of Onyx Neon Press, which has produced the PIR book and will publish the Rakudo Star book.